1  /* { dg-do compile } */
       2  /* { dg-options "-O2" } */
       3  
       4  int
       5  bar (int x)
       6  {
       7    asm goto ("" : : "r" (x), "r" (x + 1), "r" (x + 2), "r" (x + 3), /* { dg-error "operand has impossible constraints" } */
       8  	    "r" (x + 4), "r" (x + 5), "r" (x + 6), "r" (x + 7),
       9  	    "r" (x + 8), "r" (x + 9), "r" (x + 10), "r" (x + 11),
      10  	    "r" (x + 12), "r" (x + 13), "r" (x + 14), "r" (x + 15),
      11  	    "r" (x + 16) : : lab);
      12   lab:
      13    return 0;
      14  }